O.S. Rila 400 F/5.25 OTA w/72mm Focuser

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O.S. Rila 400 F/5.25 OTA w/72mm Focuser
Item # OF-RILA400-5
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  • The O.S. RiLA 400 F/5.25 OTA w/72mm Focuser is a very high quality large Astrograph Telescope OTA, packaged with a 72mm Focuser. Corrected in the visible-near IR to an extremely high degree, and in possession of a broad field of view, this Telescope can rightly be said to be of extremely high quality.
  • This item is available soley through special order- please contact us for more information!


O.S. Rila 400 F/5.25 OTA w/72mm Focuser

The Ricardi Large Astrograph is a breed of telescope all its own. The work of italian optical designer Massimo Ricardi, it modifies the Harmer-Wynne scheme, ostensibly for the better. The system is made up of an aspherical primary mirror, aspherical secondary mirror and a lens group in the back. The RiLA is corrected in the visible-near IR range, with more than 80% of the energy it's recieving focused into a space of roughly 4-6 microns RMS spot. Further of note is the broad field of view the scopes have; one of their main design goals was and is to cover a very wide corrected field with a very fast focal ratio.

This model of Ricardi Large Astrograph possesses a 400mm Aperture, a f/5.25 Focal Ratio, and comes with a 72mm Focuser. It's exceptionally fast for it's size, and the optics are all of the highest quality- conducive to a high quality viewing or imaging experience! It's lightweight for it's size, though it is still sizable enough to have notable weight to it and should be handled as such. The zero expansion carbon truss tube design includes two Losmandy type dovetails, three ventilation fans, mirrors heating, manual mirror movement, shroud and cap covers.

Manufacturer Product Number: RILA400-5
Additional Information

Additional Information

Manufacturer Officina Stellare
Telescope Series Officina Stellare RILA
Optical Design Astrograph
Mount Type None - Optical Tube Only
Warranty 1 Year Warranty
Telescope Aperture 400mm (16")
Telescope Focal Ratio f/5.25
Telescope Focal Length 2100mm
Optical Tube Outer Diameter 590mm
Optical Tube Weight 41kg
Tube Material Aluminum and Carbon
Focuser Size 72mm (2.83")
Manual or Electronic Focusing? Manual
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